3x-100=-10x+30

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Solution for 3x-100=-10x+30 equation: 



3x-100=-10x+30

We move all terms to the left:

3x-100-(-10x+30)=0

We get rid of parentheses

3x+10x-30-100=0

We add all the numbers together, and all the variables

13x-130=0

We move all terms containing x to the left, all other terms to the right

13x=130

x=130/13

x=10

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